If you've ever had a kitchen remodeled or even just a sink fixed after a slow leak that caused even a minor amount of mold or rotten wood, you might also have seen what looked like this "mass demolition," but with the final product still looking like a kitchen and in more or less the same space, only with new fixtures, appliances, and cabinets, maybe even new tile or linoleum. Maybe even a wall torn out, to adjoin it to the breakfast nook, for a more open space. But still a kitchen. Still shoe horned into the existing outside structure and foot print.
So, depending on what you might call an "overlay," this may or may not qualify -- and it may not mean anything more that a remodel to an existing show building. A "mass destruction" would be more like what happened to Horizons -- tearing down the whole building and starting again.
This, so far, seems to be more like a re-model, using the existing building, than "starting from the ground up." Similar to "Extreme Makeover, Home Edition," when they do a nice remodel, versus some episodes where they completely tear down the whole building and build a whole new one.
Don't get me wrong. It may still be a nice ride (though still not appropriate for EPCOT -- because of World Showcase's mission), but it is still a kitchen, it seems. It is still a dark ride that appears to be shoehorned into the existing show building. May be OK, even nice. Maybe (or maybe not) "an overlay." But not "mass demolition'' either.